A source revealed: "David is well known for cycling to Parliament. But they always send his car to his home as well to pick up the morning papers and any personal items he'll need for the day. He leaves a pile of things inside the front door."

Environmental campaigners last night accused Old Etonian Cameron of breathtaking hypocrisy. Steven Hounsham, of Transport 2000, said: "It's unbelievable. If there's a good reason for making a car journey to transport shoes, a case and a shirt then I'd like to hear it. …